Subject
- Human ecology20
- Ecology10
- Ecocriticism9
- Ecology in literature6
- Nature6
- Nature in literature5
- Environmental policy4
- Periodicals4
- Social ecology4
- Environmental protection3
- Environmental protection and motion pictures3
- Environmental protection in literature3
- Environmental sciences3
- Philosophy, Confucian3
- Social service3
- Agricultural ecology2
- American literature2
- City planning2
- Climatic changes2
- Conservation of natural resources in literature2